oogamy

(noun)

A form of anisogamy (heterogamy) in which the female gamete (oocyte) is significantly larger than the male gamete (sperm) and is non-motile. The male gametes are highly motile and compete for the fertilization of the immotile oocyte.

Related Terms

  • anisogamy
  • sperm
  • acrosome
  • spermatozoa
  • ATP

Examples of oogamy in the following topics:

  • Sperm

    • In the types of sexual reproduction known as anisogamy and oogamy, there are marked differences in the size of the gametes, with the smaller termed the "male" or sperm cells.
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